A former CIA officer has broken the U.S. silence around the 2003 abduction of a radical Islamist cleric in Italy, charging that the agency inflated the threat the preacher posed and that the United States then allowed Italy to prosecute her and other Americans to shield President George W. Bush and other U.S. officials from responsibility for approving the operation.

Confirming for the first time that she worked undercover for the CIA in Milan when the operation took place, Sabrina De Sousa provided new details about the “extraordinary rendition” that led to the only criminal prosecution stemming from the secret Bush administration rendition and detention program launched after the Sept. 11, 2001, attacks.

The cleric, Osama Mustapha Hassan Nasr, was snatched from a Milan street by a team of CIA operatives and flown to Egypt, where he was held for the better part of four years without charges and allegedly tortured. An Egyptian court in 2007 ruled that his imprisonment was “unfounded” and ordered him released.

Among the allegations made by De Sousa in a series of interviews with McClatchy:

– The former CIA station chief in Rome, Jeffrey Castelli, whom she called the mastermind of the operation, exaggerated Nasr’s terrorist threat to win approval for the rendition and misled his superiors that Italian military intelligence had agreed to the operation.